39cf100d5f
Bug: v8:12350 Change-Id: Ic4c8f11df4f0916d3fcb4b9d60b6e06bab4f3df8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3252820 Auto-Submit: Shu-yu Guo <syg@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/main@{#77641}
30 lines
850 B
JavaScript
30 lines
850 B
JavaScript
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --opt --no-always-opt
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// This test does not work well if we flush the feedback vector, which causes
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// deoptimization.
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// Flags: --no-stress-flush-code --no-flush-bytecode
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function foo(a, b) {
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return a - b;
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(-1n, foo(1n, 2n));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(1n, foo(2n, 1n));
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assertOptimized(foo);
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assertThrows(() => foo(2n, undefined));
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if (%Is64Bit()) {
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assertUnoptimized(foo);
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}
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(-1n, foo(1n, 2n));
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assertOptimized(foo);
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assertThrows(() => foo(undefined, 2n));
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assertOptimized(foo);
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